You can either try the Posh silicone O balls (1 1/2" in diameter) or Little Frisky (1 3/8" in diameter), because they are both made with body-safe silicone. Please make sure you'll be comfortable with the size of the balls as they are quite large for a toy beginner, and also read the related reviews about pros and cons, before deciding which set is more suitable for you -- you know your body best.